jiri/LA_library
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jiri
2013-11-04 14:56:39 +00:00
parent a9e30620f0
commit 80fe44fab2
18 changed files with 505 additions and 308 deletions
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6
bitvector.h
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@@ -55,7 +55,7 @@ public:
void reset(const unsigned int i) {v[i/blockbits] &= ~(1<<(i%blockbits));};
const bool get(const unsigned int i) {return (v[i/blockbits] >>(i%blockbits))&1;};
const bool assign(const unsigned int i, const bool r) {if(r) set(i); else reset(i); return r;};
void clear() {copyonwrite(); memset(v,0,nn*sizeof(bitvector_block));};
void clear() {copyonwrite(true); memset(v,0,nn*sizeof(bitvector_block));};
void fill() {memset(v,0xff,nn*sizeof(bitvector_block));};
bool operator!=(const bitvector &rhs) const;
bool operator==(const bitvector &rhs) const {return !(*this != rhs);};
@@ -70,13 +70,13 @@ public:
bitvector operator&(const bitvector &rhs) const {return bitvector(*this) &= rhs;};
bitvector operator|(const bitvector &rhs) const {return bitvector(*this) |= rhs;};
bitvector operator^(const bitvector &rhs) const {return bitvector(*this) ^= rhs;};
unsigned int population(const unsigned int before=0) const; //@@@number of 1's
unsigned int operator%(const bitvector &y) const; //number of differing bits
unsigned int population(const unsigned int before=0) const; //number of 1's
//extended, truncated const i.e. not on *this but return new entity, take care of modulo's bits
//logical shifts <<= >>= << >> not implemented yet
//logical rotations not implemented yet
};
extern std::ostream & operator<<(std::ostream &s, const bitvector &x);
extern std::istream & operator>>(std::istream &s, bitvector &x);